"vincent p. norris" wrote in message
...

...Is it possible to buy a pocket-size bottle with built-in brush, for
carrying in the vest?...

What you're looking for is something like this:

http://www.andonbrush.com/industry.htm

A Google search on "bottlecap applicators" will doubtless turn up many other
hits. The problem will be finding a retail vendor willing to sell and ship
a single bottle worth a dollar or less. Your best bet is probably to go to
a fly shop and buy a bottle of the original Frog's Fanny product, and then
refill with the cheap stuff.

Wolfgang